DC 5.5 x 2.1 mm interface for power control Interface and connections: The device uses a DC 5.5 x 2.1 mm interface. The male head connects to the power input of a router or optical modem, while the female head connects to the adapter power supply. Automatic power cycle: It automatically powers off and restarts the connected device every 72 hours. This builtin cycle helps refresh connections and can improve network bandwidth utilization, reducing the potential for network congestion. Plugandplay operation: No software or configuration required. Simply connect as described and let the cycle run. Compatibility and performance: Designed for devices that use a DC 5.5 x 2.1 mm power jack and an external adapter power supply. The automatic restart cadence provides a predictable reboot that supports stable network performance. Use scenarios Home router or optical modem: Schedule regular reboots to refresh connections and maintain smooth wireless performance. Small office or shared network: Use the 72hour restart cycle to help reduce congestion during peak usage periods and improve overall network reliability. Environments with intermittent connectivity: A predictable reboot cadence can help refresh devices and stabilize connections over time. Installation notes Step 1: Connect the male head to the power input on the router or optical modem. Step 2: Connect the female head to the adapter power supply. Step 3: Connect the adapter to a power source. The device will begin its automatic 72hour poweroff and restart cycle.